Fine-scale winter resource selection by American martens in boreal forests and the effect of snow depth on access to coarse woody debris

Ecoscience ◽  
2014 ◽  
Vol 21 (2) ◽  
pp. 123-132 ◽  
Author(s):  
Philip A. Wiebe ◽  
Ian D. Thompson ◽  
Curtis I. McKague ◽  
John M. Fryxell ◽  
James A. Baker
Keyword(s):  
Coarse Woody Debris ◽  
Boreal Forests ◽  
Snow Depth ◽  
Resource Selection ◽  
Woody Debris ◽  
Fine Scale ◽  
American Martens

scholarly journals Fine scale distribution of ectomycorrhizal fungi and roots across substrate layers including coarse woody debris in a mixed forest

2003 ◽  
Vol 159 (1) ◽  
pp. 153-165 ◽  
Author(s):  
Leho Tedersoo ◽  
Urmas Koljalg ◽  
Nils Hallenberg ◽  
Karl-Henrik Larsson
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Coarse Woody Debris ◽  
Woody Debris ◽  
Mixed Forest ◽  
Fine Scale

Sphagnum establishment and expansion in black spruce (Picea mariana) boreal forests

2007 ◽  
Vol 85 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Nicole J. Fenton ◽  
Catherine Béland ◽  
Sylvie De Blois ◽  
Yves Bergeron
Keyword(s):  
Picea Mariana ◽  
Coarse Woody Debris ◽  
Boreal Forests ◽  
Forest Floor ◽  
Partial Correlation ◽  
Black Spruce ◽  
Woody Debris ◽  
Community Change ◽  
Control Factor ◽  
Canopy Openness

Boreal forest bryophyte communities are made up of distinct colonies of feathermosses that cover the forest floor. In some black spruce ( Picea mariana (Mill.) BSP) boreal forests, Sphagnum spp. establish colonies on the forest floor 30–40 years after the feathermosses, and ultimately expand to dominate the community. The mechanisms that permit the Sphagnum spp. to establish and expand are unknown. The objectives of this study were to examine the establishment and expansion substrates of Sphagnum spp., and the conditions correlated with colony expansion. Forty colonies, in six stands, of Sphagnum capillifolium (Ehrh.) Hedw. were dissected to determine their substrates, and the environmental conditions in which all colonies present were growing were measured. Coarse woody debris was the dominant establishment and early expansion substrate for Sphagnum capillifolium colonies. With age as the control factor, large colonies showed a significant partial correlation with canopy openness, and there were fewer individuals per cm3 in large colonies than there were in small colonies. These results suggest that Sphagnum establishment in these communities is dependent on the presence of coarse woody debris, and expansion is linked to the stand break-up, which would allow an increase in light intensity, and rainfall to reach the colony. Consequently the community change represented by Sphagnum establishment and expansion is initially governed by a stochastic process and ultimately by habitat availability and species competition.

Monitoring downed coarse woody debris through appearance of canopy gaps in urban boreal forests with bitemporal ALS data

2015 ◽  
Vol 14 (4) ◽  
pp. 835-843 ◽  
Author(s):  
T. Tanhuanpää ◽  
V. Kankare ◽  
M. Vastaranta ◽  
N. Saarinen ◽  
M. Holopainen
Keyword(s):  
Coarse Woody Debris ◽  
Boreal Forests ◽  
Woody Debris ◽  
Canopy Gaps

scholarly journals Temperature Sensitivity of CO2 and CH4 Fluxes from Coarse Woody Debris in Northern Boreal Forests

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 624
Author(s):  
Liudmila Mukhortova ◽  
Natalia Pashenova ◽  
Maria Meteleva ◽  
Leonid Krivobokov ◽  
Georg Guggenberger
Keyword(s):  
Temperature Sensitivity ◽  
Coarse Woody Debris ◽  
Boreal Forests ◽  
Woody Debris ◽  
Co2 Flux ◽  
Methane Flux ◽  
Main Process ◽  
Strong Positive Correlation ◽  
Biological Source ◽  
Higher Temperature

Carbon dioxide (CO2) and methane (CH4) are recognized as the main greenhouse gases causing climate warming. In forest ecosystems, the death of trees leads to the formation of coarse woody debris (CWD) that is one of the sources of greenhouse gas emissions due to wood decomposition. We quantified the CO2 and CH4 fluxes from CWD of larch (Larix gmelinii (Rupr.)) and birch (Betula tortuosa Ledeb.) collected in the northern boreal forests of Central Siberia. The CWD samples were incubated at +5, +15 and +25 °C. The CO2 and CH4 fluxes showed strong correlations with temperature, moisture, decomposition stage and the type of wood’s rot. The temperature coefficient Q10 indicated higher temperature sensitivity of CO2 flux within the temperature interval from +5 to +15 °C than from +15 to +25 °C. Methane flux had higher temperature sensitivity within the interval from +15 to +25 °C. It was found that, in boreal forests, CWD of early decay stage can serve as a source of methane to the atmosphere when air temperatures increased above +15 °C. Strong positive correlation between CH4 production and CO2 emission indicated a biological source and supported findings on aerobic origin of the main process contributing to the CH4 flux from decomposing CWD.

scholarly journals Modeling persistence of coarse woody debris residuals in boreal forests as an ecological property

Ecosphere ◽  
2021 ◽  
Vol 12 (11) ◽  
Author(s):  
Lorenzo Menichetti ◽  
Harri Mäkinen ◽  
Johan Stendahl ◽  
Göran I. Ågren ◽  
Riitta Hyvönen
Keyword(s):  
Coarse Woody Debris ◽  
Boreal Forests ◽  
Woody Debris ◽  
Ecological Property
Sign in / Sign up

Export Citation Format

Share Document